مشکل ایجاد محدودیت درتعداددانلود

من یک افزونه وردپرسی دارم که مال افزونه Restrict-Content-Pro هست که کار این افزونه محدود کردن تعداد دانلود کاربران هست تنها مشکلی که بااین افزونه دارم این هست که وقتی تعداد محدودیت رومشخص می کنی افزونه به خوبی کارمیکنه وقتی به تعداد 0رسید افزونه شروع به اضافه کردن به سبد خرید میکنه یعنی اگه محصول رایگان باشه براحتی اجازه خرید ودانلود رو میده حالا تغییر یکه من میخوام این هست که وقتی تعداد محدودیت تموم شد به یه صفحه خاص منتقل بشه:
کد:

<?php/** * Plugin Name: Restrict Content Pro - EDD Member Downloads * Description: Allow members to download a certain number of items based on their subscription level. * Version: 1.0.1 * Author: Restrict Content Pro Team * Text Domain: rcp-edd-member-downloads */



/** * Loads the plugin textdomain. */function rcp_edd_member_downloads_textdomain() {    load_plugin_textdomain( 'rcp-edd-member-downloads', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );}add_action( 'plugins_loaded', 'rcp_edd_member_downloads_textdomain' );



/** * Adds the plugin settings form fields to the subscription level form. */function rcp_edd_member_downloads_level_fields( $level ) {

    if ( ! function_exists( 'EDD' ) ) {        return;    }

    global $rcp_levels_db;

    if ( empty( $level->id ) ) {        $allowed = 0;    } else {        $existing = $rcp_levels_db->get_meta( $level->id, 'edd_downloads_allowed', true );        $allowed  = ! empty( $existing ) ? $existing : 0;    }    ?>

    <tr class="form-field">        <th scope="row" valign="top">            <label for="rcp-edd-downloads-allowed"><?php printf( __( '%s Allowed', 'rcp-edd-member-downloads' ), edd_get_label_plural() ); ?></label>        </th>        <td>            <input type="number" min="0" step="1" id="rcp-edd-downloads-allowed" name="rcp-edd-downloads-allowed" value="<?php echo absint( $allowed ); ?>" style="width: 60px;"/>            <p class="description"><?php printf( __( 'The number of %s allowed each subscription period.', 'rcp-edd-member-downloads' ), strtolower( edd_get_label_plural() ) ); ?></p>        </td>    </tr>

    <?php    wp_nonce_field( 'rcp_edd_downloads_allowed_nonce', 'rcp_edd_downloads_allowed_nonce' );}add_action( 'rcp_add_subscription_form', 'rcp_edd_member_downloads_level_fields' );add_action( 'rcp_edit_subscription_form', 'rcp_edd_member_downloads_level_fields' );





/** * Saves the subscription level limit settings. */function rcp_edd_member_downloads_save_level_limits( $level_id = 0, $args = array() ) {

    if ( ! function_exists( 'EDD' ) ) {        return;    }

    global $rcp_levels_db;

    if ( empty( $_POST['rcp_edd_downloads_allowed_nonce'] ) || ! wp_verify_nonce( $_POST['rcp_edd_downloads_allowed_nonce'], 'rcp_edd_downloads_allowed_nonce' ) ) {        return;    }

    if ( empty( $_POST['rcp-edd-downloads-allowed'] ) ) {        $rcp_levels_db->delete_meta( $level_id, 'edd_downloads_allowed' );        return;    }

    $rcp_levels_db->update_meta( $level_id, 'edd_downloads_allowed', absint( $_POST['rcp-edd-downloads-allowed'] ) );}add_action( 'rcp_add_subscription', 'rcp_edd_member_downloads_save_level_limits', 10, 2 );add_action( 'rcp_edit_subscription_level', 'rcp_edd_member_downloads_save_level_limits', 10, 2 );



/** * Determines if the member is at the product submission limit. * * @param int $user_id ID of the user to check, or 0 for current user. * * @since  1.0 * @return bool True if the user is at the limit, false if not. */function rcp_edd_member_downloads_member_at_limit( $user_id = 0 ) {

    if ( ! function_exists( 'rcp_get_subscription_id' ) ) {        return;    }

    if ( empty( $user_id ) ) {        $user_id = wp_get_current_user()->ID;    }

    $remaining = rcp_edd_member_downloads_number_remaining( $user_id );    $at_limit  = ( $remaining > 0 ) ? false : true;

    return $at_limit;}

/** * Get the number of downloads remaining for a user. * * @param int $user_id ID of the user to check, or 0 for current user. * * @since  1.0.1 * @return int|false Number of downloads available. */function rcp_edd_member_downloads_number_remaining( $user_id = 0 ) {

    if ( ! function_exists( 'rcp_get_subscription_id' ) ) {        return false;    }

    global $rcp_levels_db;

    if ( empty( $user_id ) ) {        $user_id = wp_get_current_user()->ID;    }

    $remaining = 0;

    $sub_id = rcp_get_subscription_id( $user_id );

    if ( $sub_id ) {        $max       = (int) $rcp_levels_db->get_meta( $sub_id, 'edd_downloads_allowed', true );        $current   = (int) get_user_meta( $user_id, 'rcp_edd_member_downloads_current_download_count', true );        $remaining = $max - $current;    }

    if ( $remaining < 0 ) {        $remaining = 0;    }

    return $remaining;

}

/** * Displays the number of downloads the current user has remaining in this period. * * @param array  $atts    Shortcode attributes. * @param string $content Shortcode content. * * @since  1.0.1 * @return int|false */function rcp_edd_member_downloads_remaining_shortcode( $atts, $content = null ) {    return rcp_edd_member_downloads_number_remaining();}

add_shortcode( 'rcp_edd_member_downloads_remaining', 'rcp_edd_member_downloads_remaining_shortcode' );



/** * Resets a vendor's product submission count when making a new payment. */function rcp_edd_member_downloads_reset_limit( $payment_id, $args = array(), $amount ) {

    if ( ! empty( $args['user_id'] ) ) {        delete_user_meta( $args['user_id'], 'rcp_edd_member_downloads_current_download_count' );    }}add_action( 'rcp_insert_payment', 'rcp_edd_member_downloads_reset_limit', 10, 3 );



/** * Determines if a user has a membership that allows downloads. */function rcp_edd_member_downloads_user_has_download_members  hip( $user_id ) {

    if ( empty( $user_id ) ) {        $user_id = wp_get_current_user()->ID;    }

    $member = new RCP_Member( $user_id );

    global $rcp_levels_db;

    if ( ! $sub_id = $member->get_subscription_id() ) {        return false;    }

    if ( $member->is_expired() || 'pending' === $member->get_status() ) {        return false;    }

    $max = (int) $rcp_levels_db->get_meta( $sub_id, 'edd_downloads_allowed', true );

    if ( ! empty( $max ) && $max > 0 ) {        return true;    }

    return false;}



function rcp_edd_member_downloads_download_button( $purchase_form, $args ) {

    if ( ! is_user_logged_in() ) {        return $purchase_form;    }

    // @todo support bundles    if ( edd_is_bundled_product( $args['download_id'] ) ) {        return $purchase_form;    }

    // @todo maybe support variable prices    if ( edd_has_variable_prices( $args['download_id'] ) ) {        return $purchase_form;    }

    // Check to see if the product has files    $files = edd_get_download_files( $args['download_id'] );    if ( empty( $files ) ) {        return $purchase_form;    }

    // Check if the member has a membership that allows downloads    $user = wp_get_current_user();    if ( ! rcp_edd_member_downloads_user_has_download_members  hip( $user->ID ) ) {        return $purchase_form;    }

    // Check if the member is at the download limit    if ( rcp_edd_member_downloads_member_at_limit( $user->ID ) && ! edd_has_user_purchased( $user->ID, $args['download_id'] ) ) {        return $purchase_form;    }

    global $edd_displayed_form_ids;

    $download = new EDD_Download( $args['download_id'] );

    if ( isset( $edd_displayed_form_ids[ $download->ID ] ) ) {        $edd_displayed_form_ids[ $download->ID ]++;    } else {        $edd_displayed_form_ids[ $download->ID ] = 1;    }?>    <script type="text/javascript">        (function($) {            $(document).ready(function() {                $('.rcp-edd-member-download-request').on('click', function(e) {                    e.preventDefault();                    e.stopImmediatePropagation();                    var item = $(this).parent().find("input[name='rcp-edd-member-download-request']").val();                    var data = {                        action: 'rcp-edd-member-download-request',                        security: $('#rcp-edd-member-download-nonce').val(),                        item: item                    }

                    $.ajax({                        data: data,                        type: "POST",                        dataType: "json",                        url: edd_scripts.ajaxurl,                        success: function (response) {                            if ( response.file && response.file.length > 0 ) {                                window.location.replace(response.file);                            }                        },                        error: function (response) {                            console.log('error ' + response);                        }                    });                });            });        })(jQuery);    </script>

<?php    $form_id      = ! empty( $args['form_id'] ) ? $args['form_id'] : 'edd_purchase_' . $download->ID;    $button_color = edd_get_option( 'checkout_color', 'blue' );    ob_start();?>    <form id="<?php echo $form_id; ?>" class="edd_download_purchase_form edd_purchase_<?php echo absint( $download->ID ); ?>" method="post">        <input type="hidden" name="download_id" value="<?php echo esc_attr( $download->ID ); ?>">        <input type="hidden" name="rcp-edd-member-download-request" value="<?php echo esc_attr( $download->ID ); ?>">        <input type="hidden" id="rcp-edd-member-download-nonce" name="rcp-edd-member-download-nonce" value="<?php echo wp_create_nonce( 'rcp-edd-member-download-nonce' ); ?>">        <input type="submit" class="rcp-edd-member-download-request button edd-submit <?php echo esc_attr( $button_color ); ?>" value="<?php esc_html_e( 'Download', 'rcp-edd-member-downloads' ); ?>">    </form><?php    return ob_get_clean();

}add_filter( 'edd_purchase_download_form', 'rcp_edd_member_downloads_download_button', 10, 2 );



function rcp_edd_member_downloads_process_ajax_download() {

    global $rcp_levels_db;

    check_ajax_referer( 'rcp-edd-member-download-nonce', 'security' );

    if ( ! is_user_logged_in() ) {        wp_die(-1);    }

    // Check if the member has a membership that allows downloads    $user = wp_get_current_user();    if ( ! rcp_edd_member_downloads_user_has_download_members  hip( $user->ID ) ) {        wp_die(-1);    }

    if ( empty( $_POST['item'] ) ) {        wp_die(-1);    } else {        $item = absint( $_POST['item'] );    }

    if ( edd_has_user_purchased( $user->ID, $item ) ) {

        $payment_args = array(            'number'   => 1,            'status'   => 'publish',            'user'     => $user->ID,            'download' => $item,            'meta_key' => '_rcp_edd_member_downloads'        );

        $payments = new EDD_Payments_Query( $payment_args );

        $payment  = $payments->get_payments();

        if ( ! $payment ) {            unset($payment_args['meta_key'] );            $payments = new EDD_Payments_Query( $payment_args );            $payment  = $payments->get_payments();        }

        $payment_meta = edd_get_payment_meta( $payment[0]->ID );

        $files        = edd_get_download_files( $payment_meta['cart_details'][0]['id'] );

        if ( ! empty( $files ) ) {            $file_keys = array_keys( $files );            $url       = edd_get_download_file_url( $payment_meta['key'], $payment_meta['user_info']['email'], $file_keys[0], $payment_meta['cart_details'][0]['id'] );        } else {

            $files    = false;            $file_key = false;

            foreach ( $payment_meta['cart_details'] as $key => $cart_item ) {                if ( $cart_item['id'] === $item ) {                    $files = edd_get_download_files( $cart_item['id'] );                    $file_key = $key;                    break;                }            }

            if ( $files && $file_key ) {                $file_keys = array_keys( $files );                $url       = edd_get_download_file_url( $payment_meta['key'], $payment_meta['user_info']['email'], $file_keys[0], $payment_meta[$key] );            }        }

    } else {

        remove_action( 'edd_complete_purchase', 'edd_trigger_purchase_receipt', 999 );

        $sub_id = rcp_get_subscription_id( $user->ID );

        if ( ! $sub_id ) {            wp_die( __( 'You do not have a membership.', 'rcp-edd-member-downloads' ) );        }

        $max = (int) $rcp_levels_db->get_meta( $sub_id, 'edd_downloads_allowed', true );

        if ( empty( $max ) ) {            wp_die( __( 'You must have a valid membership.', 'rcp-edd-member-downloads' ) );        }

        $current = get_user_meta( $user->ID, 'rcp_edd_member_downloads_current_download_count', true );

        if ( $current >= $max ) {            wp_die( __( 'You have reached the limit defined by your membership.', 'rcp-edd-member-downloads' ) );        }

        $payment = new EDD_Payment();        $payment->add_download( $item, array( 'item_price' => 0.00 ) );        $payment->email      = $user->user_email;        $payment->first_name = $user->first_name;        $payment->last_name  = $user->last_name;        $payment->user_id    = $user->ID;        $payment->user_info  = array(            'first_name' => $user->first_name,            'last_name'  => $user->last_name,            'email'      => $user->user_email,            'id'         => $user->ID        );        $payment->gateway = 'manual';        $payment->status  = 'pending';        $payment->save();        $payment->status  = 'complete';        $payment->save();

        // Add a piece of meta to the payment letting us know it was created by this plugin. We query using this meta for future checks.        edd_update_payment_meta( $payment->ID, '_rcp_edd_member_downloads', true );

        edd_insert_payment_note( $payment->ID, __( 'Downloaded with RCP membership', 'rcp-edd-member-downloads' ) );

        $payment_meta = edd_get_payment_meta( $payment->ID );        $files        = edd_get_download_files( $item );        $file_keys    = array_keys( $files );        $url          = edd_get_download_file_url( $payment_meta['key'], $user->user_email, $file_keys[0], $item );

        $current++;        update_user_meta( $user->ID, 'rcp_edd_member_downloads_current_download_count', $current );    }

    wp_send_json( array(        'files' => $files,        'file'  => $url    ) );

}add_action( 'wp_ajax_rcp-edd-member-download-request', 'rcp_edd_member_downloads_process_ajax_download' );add_action( 'wp_ajax_nopriv_rcp-edd-member-download-request', 'rcp_edd_member_downloads_process_ajax_download' );

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